MESON Chess Problem Database
Problem Display
PID: 169630 (4br2/2p2B2/N2P4/2K3p1/1BR5/3k4/1p2R2Q/1nqNb1r1 w - - 0 1)
Zaiser, Reinhard
Heilbronner Stimme, 1987
#2
9 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qe3+
- 2.Rxe3#
- 1...Qf4
- 2.Sxb2#
- 1...Qxd1
- 2.Rd4#
- 1...Qc2
- 2.Re3#
- 1...Qc3
- 2.Re3#
- 1...Qxc4+
- 2.Bxc4#
- 1...Bxb4+
- 2.Sxb4#
- 1...Sd2
- 2.Re3#
- 1...Sc3
- 2.Rd4#
- 1...Qe3+
- Tries
- 1.Bg6+?
- 1...Rf5+
- 2.Bxf5#
- 1...Bxg6!
- 1...Rf5+
- 1.Rxe1?
- threat
- 2.Sf2#
- 2.Qe2#
- 2.Qh7#
- 1...Qe3+
- 2.Rxe3#
- 1...Qxc4+
- 2.Bxc4#
- 1...cxd6+
- 2.Qxd6#
- 1...Qxd1
- 2.Rd4#
- 2.Qh7#
- 1...Rxf7
- 2.Qe2#
- 1...Bxf7
- 2.Sf2#
- 2.Qe2#
- 1...Qd2
- 2.Qh7#
- 1...Qf4
- 2.Sxb2#
- 2.Qc2#
- 2.Qe2#
- 1...Qc2
- 2.Re3#
- 2.Qxc2#
- 2.Qh7#
- 1...Qc3
- 2.Re3#
- 2.Qe2#
- 1...Rf1
- 2.Qe2#
- 1...Rh1
- 2.Sf2#
- 2.Qe2#
- 1...Rg2
- 2.Qh7#
- 1...Rg4
- 2.Sf2#
- 2.Qe2#
- 1...Rg8
- 2.Sf2#
- 2.Qe2#
- 1...Rh8
- 2.Sf2#
- 2.Qe2#
- 1...Bc6
- 2.Sf2#
- 2.Qe2#
- 1...Bd7
- 2.Sf2#
- 2.Qe2#
- 1...Sd2
- 2.Sf2#
- 2.Re3#
- 2.Qe2#
- 1...Sc3
- 2.Rd4#
- 1...Rxe1!
- threat
- 1.Re5?
- threat
- 2.Rd5#
- 2.Qe2#
- 2.Qh7#
- 1...Qe3+
- 2.Rxe3#
- 1...Qxc4+
- 2.Bxc4#
- 1...Bf2+
- 2.Sxf2#
- 1...Bxb4+
- 2.Sxb4#
- 1...Qxd1
- 2.Rd4#
- 2.Qh7#
- 1...Rxf7
- 2.Rd5#
- 2.Qe2#
- 1...Bxf7
- 2.Qe2#
- 1...Qd2
- 2.Rd5#
- 2.Qh7#
- 1...Qf4
- 2.Sxb2#
- 2.Qc2#
- 2.Qe2#
- 1...Qc2
- 2.Re3#
- 2.Rd5#
- 2.Qxc2#
- 2.Qh7#
- 1...Qc3
- 2.Re3#
- 2.Qe2#
- 1...Rf1
- 2.Rd5#
- 2.Qe2#
- 1...Rh1
- 2.Rd5#
- 2.Qe2#
- 1...Rg2
- 2.Qh7#
- 1...Rg4
- 2.Qe2#
- 1...Rg8
- 2.Rd5#
- 2.Qe2#
- 1...Rh8
- 2.Rd5#
- 2.Qe2#
- 1...Bc3
- 2.Qe2#
- 1...Bh4
- 2.Rd5#
- 2.Qe2#
- 1...Bc6
- 2.Qe2#
- 1...Bd7
- 2.Rd5#
- 2.Qe2#
- 1...Sd2
- 2.Re3#
- 2.Rd5#
- 2.Qe2#
- 1...Sc3
- 2.Rd4#
- 1...c6
- 2.Qe2#
- 2.Qh7#
- 1...cxd6+!
- threat
- 1.Re6?
- threat
- 2.Qe2#
- 2.Qh7#
- 1...Qe3+
- 2.Rxe3#
- 1...Bf2+
- 2.Sxf2#
- 1...Bxb4+
- 2.Sxb4#
- 1...cxd6+
- 2.Rxd6#
- 2.Qxd6#
- 1...Qxd1
- 2.Rd4#
- 2.Qh7#
- 1...Rxf7
- 2.Qe2#
- 1...Bxf7
- 2.Qe2#
- 1...Qd2
- 2.Qh7#
- 1...Qf4
- 2.Sxb2#
- 2.Qc2#
- 2.Qe2#
- 1...Qc2
- 2.Re3#
- 2.Qxc2#
- 2.Qh7#
- 1...Qc3
- 2.Re3#
- 2.Qe2#
- 1...Rf1
- 2.Qe2#
- 1...Rh1
- 2.Qe2#
- 1...Rg2
- 2.Qh7#
- 1...Rg4
- 2.Qe2#
- 1...Rg8
- 2.Qe2#
- 1...Rh8
- 2.Qe2#
- 1...Bc3
- 2.Qe2#
- 1...Bh4
- 2.Qe2#
- 1...Bc6
- 2.Qe2#
- 1...Sd2
- 2.Re3#
- 2.Qe2#
- 1...Sc3
- 2.Rd4#
- 1...Qxc4+!
- threat
- 1.Rxe8?
- threat
- 2.Qe2#
- 2.Qh7#
- 1...Qe3+
- 2.Rxe3#
- 1...Qxc4+
- 2.Bxc4#
- 1...Bf2+
- 2.Sxf2#
- 1...Bxb4+
- 2.Sxb4#
- 1...cxd6+
- 2.Qxd6#
- 1...Qxd1
- 2.Rd4#
- 2.Qh7#
- 1...Rxf7
- 2.Qe2#
- 1...Qd2
- 2.Qh7#
- 1...Qf4
- 2.Sxb2#
- 2.Qc2#
- 2.Qe2#
- 1...Qc2
- 2.Re3#
- 2.Qxc2#
- 2.Qh7#
- 1...Qc3
- 2.Re3#
- 2.Qe2#
- 1...Rf1
- 2.Qe2#
- 1...Rh1
- 2.Qe2#
- 1...Rg2
- 2.Qh7#
- 1...Rg4
- 2.Qe2#
- 1...Rg8
- 2.Qe2#
- 1...Rh8
- 2.Bg6#
- 2.Qe2#
- 1...Bc3
- 2.Qe2#
- 1...Bh4
- 2.Qe2#
- 1...Sd2
- 2.Re3#
- 2.Qe2#
- 1...Sc3
- 2.Rd4#
- 1...Rxe8!
- threat
- 1.Rc3+?
- 1...Bxc3
- 2.Bc4#
- 1...Sxc3
- 2.Bc4#
- 1...Qxc3+!
- 1...Bxc3
- 1.Bg6+?
- Keys
- 1.Re7!
- threat
- 2.Qe2#
- 2.Qh7#
- 1...Qe3+
- 2.Rxe3#
- 1...Qxc4+
- 2.Bxc4#
- 1...Bf2+
- 2.Sxf2#
- 1...Bxb4+
- 2.Sxb4#
- 1...cxd6+
- 2.Qxd6#
- 1...Qxd1
- 2.Rd4#
- 2.Qh7#
- 1...Rxf7
- 2.Qe2#
- 1...Bxf7
- 2.Qe2#
- 1...Qd2
- 2.Qh7#
- 1...Qf4
- 2.Sxb2#
- 2.Qc2#
- 2.Qe2#
- 1...Qc2
- 2.Re3#
- 2.Qxc2#
- 2.Qh7#
- 1...Qc3
- 2.Re3#
- 2.Qe2#
- 1...Rf1
- 2.Qe2#
- 1...Rh1
- 2.Qe2#
- 1...Rg2
- 2.Qh7#
- 1...Rg4
- 2.Qe2#
- 1...Rg8
- 2.Qe2#
- 1...Rh8
- 2.Qe2#
- 1...Bc3
- 2.Qe2#
- 1...Bh4
- 2.Qe2#
- 1...Bc6
- 2.Qe2#
- 1...Bd7
- 2.Qe2#
- 1...Sd2
- 2.Re3#
- 2.Qe2#
- 1...Sc3
- 2.Rd4#
- threat
- 1.Re7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 15
- REMOVED MATES = 5
- Sets
- Q(b);CHECK,N_GUARD,N_PINR(E)::R1(B),XQ(b)
- Q(b);N_GUARD,N_PINR(E)::S(A),XP(e)
- Q(b);N_PINR(E),XS(A)::R1(E)
- Q(b);N_GUARD::R1(B)
- Q(b);CHECK,OGATE,XR(E)::B(I),XQ(b)
- B(c);CHECK,XB(D)::S(G),XB(c)
- S(a);S_CUTQ(b)::R1(B)
- S(a);N_PINR(E)::R1(E)
- Tries
- Try
- B(I);CHECK
- Vars
- R(j);CHECK,N_GUARD,P_SPINR(j)::B(I),XR(j)
- Refutation
- B(i);XB(I)
- Try
- R(B);XB(c)
- Threat
- DUALS(3)
- Vars
- Q(b);CHECK,N_GUARD,N_PINR(E)::R1(B),XQ(b)
- Q(b);CHECK,OGATE,XR(E)::B(I),XQ(b)
- P(h);CHECK,OGATE,XP(H)::QAR(C),XP(h)
- R(j);XB(I)::QAB1(C)
- Q(b);N_PINR(E)::QAB(C)
- R(d);::QAB1(C)
- R(d);::QAB(C)
- S(a);N_PINR(E)::R1(E)
- Refutation
- R(d);XR(B)
- Try
- R(B);
- Threat
- DUALS(3)
- Vars
- Q(b);CHECK,N_GUARD,N_PINR(E)::R1(B),XQ(b)
- Q(b);CHECK,OGATE,XR(E)::B(I),XQ(b)
- B(c);CHECK,N_GUARD::S(A),XB(c)
- B(c);CHECK,XB(D)::S(G),XB(c)
- B(i);XB(I)::QAB1(C)
- R(d);::QAB(C)
- R(d);::QAB1(C)
- B(c);N_PINR(E)::QAB1(C)
- B(i);::QAB1(C)
- S(a);N_PINR(E)::R1(E)
- Refutation
- P(h);CHECK,XP(H)
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,N_GUARD,N_PINR(E)::R1(B),XQ(b)
- B(c);CHECK,N_GUARD::S(A),XB(c)
- B(c);CHECK,XB(D)::S(G),XB(c)
- R(j);XB(I)::QAB1(C)
- B(i);XB(I)::QAB1(C)
- Q(b);N_PINR(E)::QAB(C)
- R(d);::QAB1(C)
- R(d);::QAB(C)
- R(j);::QAB1(C)
- B(c);N_PINR(E)::QAB1(C)
- B(c);::QAB1(C)
- B(i);::QAB1(C)
- S(a);N_PINR(E)::R1(E)
- Refutation
- Q(b);CHECK,XR(E)
- Try
- R(B);XB(i)
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,N_GUARD,N_PINR(E)::R1(B),XQ(b)
- Q(b);CHECK,OGATE,XR(E)::B(I),XQ(b)
- B(c);CHECK,N_GUARD::S(A),XB(c)
- B(c);CHECK,XB(D)::S(G),XB(c)
- P(h);CHECK,OGATE,XP(H)::QAR(C),XP(h)
- R(j);XB(I)::QAB1(C)
- Q(b);N_PINR(E)::QAB(C)
- R(d);::QAB1(C)
- R(d);::QAB(C)
- R(j);::QAB1(C)
- B(c);N_PINR(E)::QAB1(C)
- B(c);::QAB1(C)
- S(a);N_PINR(E)::R1(E)
- Refutation
- R(j);XR(B)
- Try
- R(E);CHECK
- Vars
- B(c);XR(E)::B(I)
- S(a);XR(E)::B(I)
- Refutation
- Q(b);CHECK,XR(E)
- Try
- Actual
- R(B);
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,N_GUARD,N_PINR(E)::R1(B),XQ(b)
- Q(b);CHECK,OGATE,XR(E)::B(I),XQ(b)
- B(c);CHECK,N_GUARD::S(A),XB(c)
- B(c);CHECK,XB(D)::S(G),XB(c)
- P(h);CHECK,OGATE,XP(H)::QAR(C),XP(h)
- R(j);XB(I)::QAB1(C)
- B(i);XB(I)::QAB1(C)
- Q(b);N_PINR(E)::QAB(C)
- R(d);::QAB1(C)
- R(d);::QAB(C)
- R(j);::QAB1(C)
- B(c);N_PINR(E)::QAB1(C)
- B(c);::QAB1(C)
- B(i);::QAB1(C)
- S(a);N_PINR(E)::R1(E)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).